Construct the following angles and verify by measuring them by a protractor:
(i)`75^@` , (ii)`105^@` , (iii)`135^@`

Explanation

To construct the angles \(75^\circ\), \(105^\circ\), and \(135^\circ\) using a compass and a straightedge, follow these steps:

### Construction of \(75^\circ\)

1. **Construct \(60^\circ\)**:
- Draw a straight line segment \(BC\).
- With point \(B\) as the center, draw a semicircle above the line \(BC\).
- Mark the intersection points of the semicircle with line \(BC\) as \(D\) and \(E\).
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